ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,414, issued on Sept. 30, was assigned to Basilea Pharmaceutica International AG (Basel, Switzerland).

"Methods for purifying isavuconazonium sulfate" was invented by Weipeng Zeng (Basel, Switzerland), Marco Mazzotti (Basel, Switzerland), Lars Vicum (Basel, Switzerland), Jeroen Cornel (Basel, Switzerland), Markus Heubes (Basel, Switzerland) and Michael Schleimer (Basel, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides methods for purifying isavuconazonium sulfate comprising the steps of -(a) providing a mixture comprising the sulfate salt of the compound of formula (I) and an aliphatic alcohol, wherein the pH of the ...